Appaeatus foe manufacturing lamp black



(No Model.) 2 SheetsSheet 1.

' P. NEPP.

APPARATUS FOR MANUFACTURING LAMP BLACK. N0. 319,604.v Patented June 9, 1885.

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2 Sheets-Sheet 2.

(No Model.)

P. NEPF. APPARATUS FOR MANUFAOTURINGLAMP BLACK. No. 319,604.

Patented June 9, 1885.

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PETER NEFF, OF GAMBIER, OHIO, ASSIGNOR TO PETER NEFF, JR, OF SAME PLACE.

- APPARATUS FOR MANUFACTURING LAM P-BLACK.

ESPECIFICATION forming part of Letters Patent No. 319,604, dated June 9, 1885.

Application filed November 12, 1884. (No model.)

To all whom it may concern:

Be it known that LPETER N EFF, of Gambier, in the county of Knox and State of Ohio, have invented certain new and useful Improvements in Machines for Making Lam p-Black and I do hereby declare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which it pertains to make and use the same.

My invention relates to the manufacture of carbon black; and it consists in a device and mechanism hereinafter specified, whereby said black is deposited by the combustion of gas or other carbonaceous material, and when sufficiently collected, is removed from the surface upon which it has been deposited.

In the drawings, Figure 1 represents in side elevation one embodiment of my invention. Fig. 2 is a similar view representing another embodiment of said invention. Figs. 3, 4, and 5 are similar views of other slightly modified forms of device embodying my invention.

My invention has two principal ideas-one that the collecting-surface shall be a revolving or rotating one moving over stationary burners, and the second idea is that this revolving collectingsurface shall be so formed or constructed upon its under side, where the collection of black takes place, that the combustion of the gas or other carbonaceous material shall result in the formation and retention beneath the collecting-surface of a permanent body or cushion of carbonieacid gas during the operation of the apparatus.

The first of my objects is effected through any suitable construction of the table that will allow for rotation or revolution, and any effective application of any suitable power may be had to accomplish the revolution of the collecting-surface. If this surface is so large that it cannot be conveniently made self-supporting, then any suitable construction of braces, trusses, stay-rods, or guys, substantially such as indicated in the drawings or otherwise, may be employed.

The second object of my invention, as above set forth, is attained by such construction of the collecting-surface as is indicated or suggested in Figs. 1, 2, and 3 of the drawings.

I do not in any degree confine myself to any specific construction of the collecting-surfirce,

nor to its particular shape or dimensions, so long as it is so made that when gas or other carbonaceous material is burned beneath it the carbonic-acid gas arising from said combustion shall be collected and retained as a body or cushion up against the lower surface of the revolving table, and in which body or cushion of carbonic-acid gas the flame shallimpinge and become partially smothered during the time it is yielding its lamp-black. \Vhile it is a well known fact that carbonicaeid gas is of a greater specific gravity than common air, it is nevertheless true that the column of hot air resulting from combustion of the carbonaceous gas, oil, or other carbonaceous matter will buoy up and support this carbonic-aoid gas against the lower surface of the revolving collector. In order to confine this body or cushion of carbonic-acid gas the outer rim or edge of the revolving collecting-surface shall be lower than any other portion of said surface. This can be effected by making said surface in the form of an inverted dish, several forms of which are indicated or suggested in the drawings.

I have already, in previous patents granted to me, referred to the broad idea of a collecting-surface capable of retaining this cushion or body of carbonic-acid gas; but I never yet adapted this principle to a rotating or revolving surface, which form of surface in some cases has advantages on account of the comparatively limited amount of space occupied thereby, besides in the revolving form a stationary scraper and conveying apparatus can be employed. This stationary scraper is made to impinge against the under side of the col lecting-surface and remove the black therefrom as it is collected. This black is received in any suitable receptacle and mechanically conveyed to any place desired for bolting or other purposes.

The conveying process and apparatus that I have employed are in no degree substantially different in construction, adaptation, or function from the similar process and mechanism long employed in milling.

In the drawings, A is the revolving blackcolleetor, having its outer rim or edge, A, lower than any other portion, thereby forminga chamber, A", within which is collected and retained abody or cushion of carbonicacid gas heretofore specified. B is a chimney "or perforation, of which there can be one or more, for effecting such ventilation of the chamber A as may be desired. I recommend, however, that this ventilation should never be carried to such an extent as to materially impair or destroy the body or cushion of carbonic-acid gas in the chamber A Instead of the chimney B, a mere perforation through the table A ma be made. When these perforations, if they are used, become clogged with soot, they can readily be cleaned by a blast of air or gas applied by any suitable means. Instead of the blast j ust mentioned, brushes or any other mechanical means may be employed for clearing the perforations when clogged.

Gare supporting-wheels traveling upon suitable circular tracks or ways, which may be employed, if necessary, when the rotating table is of such weight or dimensions as to require them. These wheels may be provided with springs or cushions to insure the collecting-surface against jolting, that would result in the dislodgment of the collected black, and also to insure the movement of the collectingsurface in a uniform plane, so as to insure at all times an even action of the collecting- 30 scrapers.

What I claim as my invention,and desire to secure by Letters Patent, is

1. In a machine for making lamp-black, the combination, with a horizontally-rotating surface constructed to form an inverted chamber for the reception of carbonicacid gas, of gas-jets located below and in close proximity to said rotating surface, substantially as set forth.

2. In a machine for manufacturing lampblack,the combination, with a horizontally-rotating surface having a downwardly projecting flange forming an inverted chamber for the reception of carbonic-acid gas, of gas-jets located below said rotating surface and in close proximity thereto, substantially as set forth.

3. In a machine for makinglamp-black, the combination, with a horizontally-rotating surface having a downwardly-projecting flange, of the stationary burners and scrapers located below said rotating surface, substantially as set forth.

In testimony whereof I sign this specification, in the presence of two witnesses, this 22d (lay of July, 1884.

PETER NEFF.

Witnesses.

ALBERT E. LYNCH, CHAS. H. Donna. 

